advice please

84 tg · rice boy Joined: 29 Jan 2003 Posts: 16

whitch is the better option use a piazza manifold to fuel inject and turbo my 1800 and do up the interals so it can take more boost or do the same to a 4zc1. i have both of these engins the 1800 has been port and polished,bigger cam, a heavy duty double row ajustable timing chain, aloy head and timing case, bored to 1.9, fly cut pistins, oversize valvs and runs on premium. and the 4zc1 is totilly standed and in need of a rebiuld (not running). any advice would be great.
cheers

leney SR20DET · tinkerer Joined: 10 Mar 2003 Posts: 93

go the piazza motor dude

Soop · backyard mechanic Joined: 30 May 2002 Posts: 748

Id lower the comp on the 1800 to around 7/8:1 and use that. Seems like a good motor.

Plus easier to get future parts for.

84 tg · rice boy Joined: 29 Jan 2003 Posts: 16

how do i get the compresion that low.
do i just use a thick gasket?

Soop · backyard mechanic Joined: 30 May 2002 Posts: 748

Put different pistons in ? I assume yours were dished to raise the compression ?

Also you could use a decomp plate.